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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">donstu</journal-id><journal-title-group><journal-title xml:lang="en">Advanced Engineering Research (Rostov-on-Don)</journal-title><trans-title-group xml:lang="ru"><trans-title>Advanced Engineering Research (Rostov-on-Don)</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2687-1653</issn><publisher><publisher-name>Don State Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.12737/19686</article-id><article-id custom-type="elpub" pub-id-type="custom">donstu-71</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MECHANICS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МЕХАНИКА</subject></subj-group></article-categories><title-group><article-title>Reconstruction of defects in elastic bodies by combination of genetic algorithm and finite element method</article-title><trans-title-group xml:lang="ru"><trans-title>Реконструкция дефектов в упругих телах сочетанием генетического алгоритма и метода конечных элементов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Соловьев</surname><given-names>Аркадий Николаевич</given-names></name><name name-style="western" xml:lang="en"><surname>Solovyev</surname><given-names>Arkady N</given-names></name></name-alternatives><email xlink:type="simple">solovievarc@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шевцов</surname><given-names>Михаил Юрьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Shevtsov</surname><given-names>Mikhail Y.</given-names></name></name-alternatives><email xlink:type="simple">mesouug@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Донской государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Don State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2016</year></pub-date><volume>16</volume><issue>2</issue><fpage>5</fpage><lpage>12</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Solovyev A.N., Shevtsov M.Y., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Соловьев А.Н., Шевцов М.Ю.</copyright-holder><copyright-holder xml:lang="en">Solovyev A.N., Shevtsov M.Y.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.vestnik-donstu.ru/jour/article/view/71">https://www.vestnik-donstu.ru/jour/article/view/71</self-uri><abstract><p>Modeling of the non-destructive testing system of defects in solids is performed. Specifically, the inverse geometric problems of the elasticity theory for a flat rectangular area on reconstructing circular cavities and cracks breaking the body surface are considered. Additional information for solving these problems is a setting of the first four natural resonance frequencies. The inverse problem solution is based on the minimization of the residual functional between the measured input source information and the data calculated during the numerical solution of direct problems with the given parameters of defects. As a tool for solving direct problems, the finite element method implemented in FlexPDE program is used. The functional minimization is carried out by using a genetic algorithm (GA) implemented in the developed GAFEMNDT program. The program algorithm and GA settings used in the numerical experiments are described. The experiments results on determining parameters of defects (coordinates of centre, radius, coordinates of surface cracking and its size) are presented. The results demonstrate adequacy of the additional information to overcome the problem ill-posedness, as well as high efficiency of the proposed algorithm both in accuracy of detecting defects parameters, and in their search speed.</p></abstract><trans-abstract xml:lang="ru"><p>Проведено моделирование системы неразрушающего контроля дефектов в твердых телах. Рассматриваются обратные геометрические задачи теории упругости для плоской прямоугольной области по реконструкции круговых полостей и трещин, выходящих на поверхность тела. Дополнительной информацией для решения этих задач является набор первых четырех собственных резонансных частот. Решение обратных задач основано на минимизации функционала невязки между измеренной входной информацией и рассчитанной в ходе численного решения прямых задач с заданными параметрами дефектов. В качестве инструмента решения прямых задач используется метод конечных элементов, реализованный в программе FlexPDE. Минимизация функционала осуществляется с помощью генетического алгоритма (ГА), реализованного в разработанной программе GAFEMNDT. В работе описан алгоритм этой программы и настройки ГА, которые используются в численных экспериментах. Приведены результаты этих экспериментов по определению параметров дефектов (координат центра, радиуса, координат выхода трещины на поверхность и ее размер). Эти результаты показывают достаточность дополнительной информации для преодоления некорректности задачи, а также высокую эффективность предложенного алгоритма, как в точности определения параметров дефектов, так и в скорости их поиска.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>генетический алгоритм</kwd><kwd>метод конечных элементов</kwd><kwd>неразрушающий контроль</kwd><kwd>genetic algorithm</kwd><kwd>finite element method</kwd><kwd>non-destructive testing</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Курбатова, П. С. Об использовании нейронных сетей в задачах определения дефектов в упругих телах / П. С. Курбатова, Н. И. Сапрунов, А. Н. Соловьев // Современные проблемы механики сплошной среды : материалы X междунар. конф. - 2006. - C. 175-180.</mixed-citation><mixed-citation xml:lang="en">Kurbatova, P. S., Saprunov, N.I., Solovyev, A.N. 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